- Author: Karl-Heinz Keldungs Wolfgang Tilly (auth.)
- Language: German
- Year: 2005
- Author: Karl-Heinz Keldungs Joachim Ganschow Norbert Arbeiter
- Language: German
- Year: 2018
- Author: Karl-Heinz Keldungs Norbert Arbeiter (auth.)
- Language: German
- Year: 2007
- Author: Karl-Heinz Keldungs (auth.) Rainer Oswald (eds.)
- Language: German
- Year: 2001
- Author: Karl-Heinz Keldungs Wolfgang Tilly (auth.)
- Language: German
- Year: 2005
- Author: Karl-Heinz Keldungs Norbert Arbeiter (auth.)
- Language: German
- Year: 2003
- Author: Karl-Heinz Keldungs Norbert Arbeiter
- Language: German
- Year: 2011
- Author: Karl-Heinz Keldungs
- Language: German